Keke Palmer, Chloe and Halle Bailey, Darren Criss, and other celebrities show off their musical talents while performing songs like "Toxic" by Britney Spears in the Wheel of Impossible Karaoke challenge.

These "SNL" musical guests couldn't keep it together. For this list, we’ll be looking at the funniest instances that musical guests — or musical guests who doubled up as hosts — couldn’t keep it together while partaking in sketches. Our countdown includes...

Voice coaches Chance the Rapper, Kelly Clarkson, Niall Horan and Blake Shelton perform a stunning version of Frankie Valli's "Can't Take My Eyes Off You."